A 72-year-old substitute teacher was arrested after a coworker reportedly caught him sneaking in some quick "penis manipulation" before first period.

The witness said she saw Michael Luecke on the ground in a high school hallway early Wednesday morning and went to assist him, but as she got closer, she noticed his hand was inside his pants and he appeared to be masturbating. She reported the incident, and school officials detained the elderly substitute.

He was later arrested by Stamford, Connecticut, police and charged with public indecency, second-degree breach of peace, and risk of injury to a minor, according to the Stamford Advocate.

"Video surveillance was found showing Luecke … in a corner of a stairwell ... suspiciously manipulating the front of his pants while looking at students in the courtyard," police told the Norwalk Daily Voice. The video also shows six students walking past Luecke as he lay on the ground. Police are working with the school to find the students, who they say may need counseling.

According to court documents viewed by local reporters, Luecke told police he was just "fixing his pants."